diff --git a/tempest/api/network/admin/test_dhcp_agent_scheduler.py b/tempest/api/network/admin/test_dhcp_agent_scheduler.py
index 0e601d1..13ae1c0 100644
--- a/tempest/api/network/admin/test_dhcp_agent_scheduler.py
+++ b/tempest/api/network/admin/test_dhcp_agent_scheduler.py
@@ -59,17 +59,31 @@
         return network_id in network_ids
 
     @test.attr(type='smoke')
-    def test_remove_network_from_dhcp_agent(self):
+    def test_add_remove_network_from_dhcp_agent(self):
         # The agent is now bound to the network, we can free the port
         self.client.delete_port(self.port['id'])
         self.ports.remove(self.port)
-        resp, body = self.admin_client.list_dhcp_agent_hosting_network(
-            self.network['id'])
+        agent = dict()
+        agent['agent_type'] = None
+        resp, body = self.admin_client.list_agents()
         agents = body['agents']
-        self.assertIsNotNone(agents)
-        # Get an agent.
-        agent = agents[0]
-        network_id = self.network['id']
+        for a in agents:
+            if a['agent_type'] == 'DHCP agent':
+                agent = a
+                break
+        self.assertEqual(agent['agent_type'], 'DHCP agent', 'Could not find '
+                         'DHCP agent in agent list though dhcp_agent_scheduler'
+                         ' is enabled.')
+        network = self.create_network()
+        network_id = network['id']
+        if self._check_network_in_dhcp_agent(network_id, agent):
+            self._remove_network_from_dhcp_agent(network_id, agent)
+            self._add_dhcp_agent_to_network(network_id, agent)
+        else:
+            self._add_dhcp_agent_to_network(network_id, agent)
+            self._remove_network_from_dhcp_agent(network_id, agent)
+
+    def _remove_network_from_dhcp_agent(self, network_id, agent):
         resp, body = self.admin_client.remove_network_from_dhcp_agent(
             agent_id=agent['id'],
             network_id=network_id)
@@ -77,6 +91,13 @@
         self.assertFalse(self._check_network_in_dhcp_agent(
             network_id, agent))
 
+    def _add_dhcp_agent_to_network(self, network_id, agent):
+        resp, body = self.admin_client.add_dhcp_agent_to_network(
+            agent['id'], network_id)
+        self.assertEqual(resp['status'], '201')
+        self.assertTrue(self._check_network_in_dhcp_agent(
+            network_id, agent))
+
 
 class DHCPAgentSchedulersTestXML(DHCPAgentSchedulersTestJSON):
     _interface = 'xml'
diff --git a/tempest/services/network/json/network_client.py b/tempest/services/network/json/network_client.py
index a804e8e..f31789c 100644
--- a/tempest/services/network/json/network_client.py
+++ b/tempest/services/network/json/network_client.py
@@ -339,3 +339,11 @@
         resp, body = self.get(uri)
         body = json.loads(body)
         return resp, body
+
+    def add_dhcp_agent_to_network(self, agent_id, network_id):
+        post_body = {'network_id': network_id}
+        body = json.dumps(post_body)
+        uri = '%s/agents/%s/dhcp-networks' % (self.uri_prefix, agent_id)
+        resp, body = self.post(uri, body)
+        body = json.loads(body)
+        return resp, body
diff --git a/tempest/services/network/xml/network_client.py b/tempest/services/network/xml/network_client.py
index 2a5083c..4380ebd 100644
--- a/tempest/services/network/xml/network_client.py
+++ b/tempest/services/network/xml/network_client.py
@@ -277,6 +277,13 @@
         body = _root_tag_fetcher_and_xml_to_json_parse(body)
         return resp, body
 
+    def add_dhcp_agent_to_network(self, agent_id, network_id):
+        uri = '%s/agents/%s/dhcp-networks' % (self.uri_prefix, agent_id)
+        network = common.Element("network_id", network_id)
+        resp, body = self.post(uri, str(common.Document(network)))
+        body = _root_tag_fetcher_and_xml_to_json_parse(body)
+        return resp, body
+
 
 def _root_tag_fetcher_and_xml_to_json_parse(xml_returned_body):
     body = ET.fromstring(xml_returned_body)